How to validate an AI-generated business case before the CFO call
Your champion has an AI-generated business case and wants you to confirm the savings before the CFO meeting. Run this post-demo review with the champion and finance partner to correct the numbers and agree on dated validation tasks.
Validate every material claim against a traceable source, a buyer-confirmed baseline, explicit assumptions, full costs, and the economic buyer’s approval criteria. Separate released capacity from reduced spending. Before requesting approval, give every unresolved input a buyer owner, a validation deadline, and a condition for inclusion.
What should you validate in an AI-generated business case?
A material claim is one that could change the purchase decision if corrected.
For example: Maya, VP Operations, and Luis, her finance partner, review a workflow-software case after the demo.
- Request the draft and cited sources through the buyer’s approved sharing process.
- Log each claim, source and date, calculation, status, buyer owner, deadline, and approval dependency.
- Use our working labels: confirmed, assumed, disputed, excluded.
- Maya confirms operating baselines; you verify seller capabilities and commercial commitments.
What changes when the buyer brings an AI-generated draft?
Check that each citation exists, supports the claim, and applies to this buyer’s workflow and purchase scope. A real source is not automatically an applicable source.
Check AI-drafted evaluation criteria and RFP requirements with the buyer too; do not treat the draft as an approved requirement.
When they say: “AI drafted the case.”
“Which parts came from your records, and which parts did the draft infer?”
Rehearse your call, and see the NextSay Sales overview and how it works.
What do you say when the buyer asks you to validate the numbers?
Ask for provenance, benefit type, and approving owner before endorsing a number. Suggested scripts:
| The moment | Say this |
|---|---|
| Opening | “Maya, can we check the numbers together before your CFO sees them?” |
| Missing source | “Which source and date support this number, and who can confirm it?” |
| Missing baseline | “What happens today, over what period, and where is that recorded?” |
| Capacity versus cash | “Does this reduce spend, avoid a planned cost, or free time your team will use elsewhere?” |
| Uncertain assumptions | “Which inputs have you confirmed, and which are still assumptions from the draft?” |
| Finance approval | “Luis, what treatment will finance accept, and who can approve it?” |
| Unsupported return | “I would not present this as financial return yet. What evidence would change that?” |
| Conditional next step | “Who verifies each open input, by what date, and what must be true before CFO review?” |
Where your state or theirs requires it, tell the other person the call is being transcribed and get their consent.
How do you test savings without turning assumptions into ROI?
Recalculate capacity value separately from financial return. Capacity value is the assigned value of released time, not necessarily reduced spending.
Use our four-step review:
- Confirm inputs. Maya confirms 12 analysts; one hour weekly and 48 working weeks remain assumptions: 12 × 1 × 48 = 576 hours.
- Value capacity. At an assumed $60/hour, that is $34,560; assumed 50% realization reduces it to $17,280.
- Count costs. An illustrative $24,000 subscription plus $6,000 implementation totals $30,000 before internal effort, training, overlap, and timing.
- Ask finance to accept the horizon and benefit treatment; remove duplicate benefits and verify capabilities.
Luis records $17,280 as assumed capacity value—not cash savings—and $30,000 as incomplete first-year costs. Maya owns time measurement; you own missing costs. CFO review waits for both.
Do not calculate ROI or payback from capacity alone: released time does not establish reduced spending.
How do you leave with a case finance can review?
Before you end the call, name who sends each document, when it is due, and who owns the budget.
- Maya: baseline record by November 3, before finance review.
- You: verified capability and full-cost proposal by November 4, before Luis’s assessment.
- Luis: benefit treatment and budget-owner confirmation by November 5, before the November 6 CFO review.
Retain procurement or any required RFP.
Confirm agreed commitments with this follow-up structure.
What should you do if the business case still fails?
Keep unsupported benefits out of the CFO request, even if your close date slips.
- For each missing input, name who will measure it, by when, and what result finance will accept. Do not promise a pilot you cannot authorize.
- If the buyer wants to proceed for nonfinancial reasons, write down those reasons and who approves them.
No discount fixes an unsupported benefit.
When they say: “Can we present it anyway?”
“We cannot support this return yet. Should we check the missing input, change scope, or pause the approval request?”
Frequently asked questions
What if the buyer will not share the data behind the business case?
Ask for an approved aggregate or buyer-side verification; leave the input unconfirmed if neither is available.
How do I check the ROI figures my buyer generated with AI?
Inspect the formulas as well as the inputs. Check for incorrect cell references, inconsistent units, and percentages applied to the wrong base before discussing the result with finance.
What should I say when the buyer asks me to confirm an unsupported savings estimate?
“Maya, I can confirm our quoted price, but I cannot confirm your savings without the operating record.” Keep your commercial commitment separate from the buyer’s operating forecast.
How do I stop time savings from being presented as cash savings?
Ask which actual expense will change. If the buyer claims avoided hiring, ask finance to confirm the planned hire and timing before including that benefit.
Sources
- AI Due Diligence: Where It Works and Where It Fails | Tommaso Maria Ricci tommasomariaricci.com
- How AI Changed the B2B Buying Process in 2026 geisheker.com
Rehearse the evidence check before your next CFO review.
NextSay Sales is a real-time AI call assistant for B2B sales reps and account executives: it guides the live sales call with the next move and Key Signals, and prepares, researches and rehearses each call and writes the record and follow-up. The button opens NextSay on NextSay Sales, with no account needed to try it.
Where your state or theirs requires it, tell the other person the call is being transcribed and get their consent.